COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES AND PROTOCOLS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Its unit of measurement is the hertz.
|
|
|
It’s a measure of how many times something changes per second
|
|
|
The unit of measurement is the freq
|
|
|
Radio waves can have a variety of frequencies
|
Detailed explanation-1: -One thousand hertz is referred to as a kilohertz (kHz), 1 million hertz as a megahertz (MHz), and 1 billion hertz as a gigahertz (GHz). The range of the radio spectrum is considered to be 3 kilohertz up to 300 gigahertz.
Detailed explanation-2: -Property 1: Radio waves are a form of radiation known as electromagnetic waves. The wavelength of radio waves is longer than the infrared light. Property 2: Radio waves can travel for a long distance. Property 3: Radio waves can penetrate through materials.
Detailed explanation-3: -They can be separated in the receiver because each transmitter’s radio waves oscillate at a different rate, in other words each transmitter has a different frequency, measured in kilohertz (kHz), megahertz (MHz) or gigahertz (GHz).